The thesis is a tentative study in this filed, the frame work for this thesis is as follows: Chapter one is the general description of this thesis; Chapter two is about analysis of the double life, it is mainly about discuss the diffierent idea of Rebecca sharp which include the victim and the victimizer; Chapter three is talking about the factors lead to the double life from different views; Chapter four is conclusions. It gives us a general summary of the whole thesis and put forward the limitations and recommendations for the further study.